https://itunes.apple.com/app/id908356901?mt=8

Jump In your supercharged JetSki and take a wild ride through twisting canals and rivers, futuristic cityscapes, and mysterious research facilities. Skill, stunts, and speed will be your best allies as you grab massive air off huge waves, kick out death-defying tricks, and boost your jet ski to victory across a dynamic, ever-changing torrent of foam and spray. Try 'Jet Ski Extreme Racing' which give you amazing driving experience on your iPhone or iPad or iPod Touch.
Features:
***8 visually amazing and challenging Tracks.
***Simple,Smooth and effective Tilt-Controls.
***Astonishing physics brings chaos to another level.
***Intelligent enemies driving racing Jet Boats.
***Highly detailed 3D Graphics.
***Optimized For iPhone 5.  Show less